CN210454845U

CN210454845U - Shopping cart capable of climbing ladder

Info

Publication number: CN210454845U
Application number: CN201921569420.6U
Authority: CN
Inventors: 董富强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-05-05
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a but cat ladder shopping cart, including frame, wheel and motor drive system, motor drive system is fixed in the frame, and motor drive system connects the wheel, and the wheel includes two and links wheel mechanism, three and link wheel mechanism or four and link wheel mechanism. The utility model relates to a but this kind of cat ladder shopping cart, simple structure climbs stair labour saving and time saving, especially to the old person, and the old person is pushing away the shopping cart and is climbing stair and have certain difficulty, and the shopping cart of this application can solve the defect that present old person's shopping cart does not be equipped with automatic drive system. The operation is simple, when the ladder needs to be climbed, the starting and stopping of the motor can be realized only by pressing the key, and the motor driving system drives the shopping cart.

Description

Shopping cart capable of climbing ladder

Technical Field

The utility model belongs to the technical field of the shopping shallow, concretely relates to but cat ladder shopping shallow.

Background

The existing shopping trolley for the old is generally of a purely mechanical type. When the cart goes up and down stairs, the cart cannot automatically go up and down stairs, so that the old people can pull the shopping cart to go up and down stairs with great effort. Especially when a shopping cart bears a heavy object, the cart is difficult to be pulled up to the stairs by the old without an elevator.

Patent literature discloses a ladder climbing vehicle provided with a handrail, a frame, and a traveling device. The handrail comprises an upper handrail, a lower handrail and an object supporting plate. The lower handrail is rotatably arranged on the frame, the upper handrail is fixed on the lower handrail by a pipe hoop, and the object supporting plate is fixedly connected with the lower handrail. The frame is provided with a rectangular frame, four shaft sleeves for mounting chain wheel shafts and an angle adjusting rod. The walking device is a crawler-type walking device and comprises two chain wheels, a chain, a supporting plate and a reinforcing plate, wherein the supporting plate and the reinforcing plate are arranged on the chain, and the wheel base of the two chain wheels is larger than the distance between the ridge lines of the two stair steps.

The crawling ladder vehicle is a crawler-type crawling ladder vehicle, is complex in structure and high in manufacturing cost, and is more suitable for commercial use.

In addition, still disclose a foldable drive ladder car, be equipped with folding chassis, cat ladder subassembly and shelf, the cat ladder subassembly sets up at folding chassis's rear portion, and shelf sets up in the bottom of cat ladder subassembly for place the goods.

This cat ladder car is including setting up the triangular wheel in both sides, and the triangular wheel includes three wheel, but it belongs to pure mechanical type, though can be laborsaving relatively, still can't satisfy the needs that the old person pushed the car that bears the weight of thing and goes up stair.

Still there is a can flat stair car, be equipped with the threaded rod, the mount, the axle sleeve, the chassis, the frame, a pair of rear wheel, a pair of intermediate wheel, a pair of front wheel and be used for driving intermediate wheel pivoted driving motor, the rear wheel is connected on the chassis with the intermediate wheel, the front wheel is connected on the frame, the intermediate wheel is respectively through the track to front wheel and rear wheel transmission, wherein, the mount rotates to be connected on the frame, the axle sleeve rotates to be connected on the chassis, the threaded rod rotates with the mount to be connected, threaded rod and axle sleeve threaded connection.

The ladder climbing vehicle is provided with a power motor, and the traveling mechanisms on two sides of the ladder climbing vehicle are still in a crawler type. The ladder climbing vehicle is complex in structure, high in manufacturing cost and not suitable for daily life. And the crawler-type walking mechanism is driven by the motor system, and the crawler-type crawling ladder vehicle stops immediately when the motor does not work, so that the crawler-type crawling ladder vehicle cannot be suitable for walking on the flat ground under a pure mechanical structure. This kind of structure and operation mode, the suitability is not wide, more is fit for the transportation of special occasion, and the hand push of daily use makes the climbing ladder car, and this walking structure can't be applied to it.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a shopping cart capable of climbing stairs. Simple structure, low in manufacturing cost, the suitability is wider, when needs electronic crawling in stair, only need press the motor button can control labour saving and time saving. On the flat ground, the walking vehicle can walk without being driven by a motor.

The utility model discloses the technical scheme who adopts does: the utility model provides a can cat ladder shopping cart, includes frame, wheel and motor drive system, and motor drive system is fixed in the frame, and motor drive system connects the wheel, and the wheel includes two and links wheel mechanism, three and links wheel mechanism or four and links wheel mechanism. The shopping cart can be a daily-used cart, the motor driving system is fixed in the middle of the bottom of the cart frame, and the motor is provided with a double shaft and a synchronous motor.

The two wheel connecting mechanisms comprise two wheels and a connecting piece I, the two wheels are connected through the connecting piece I, and the rotating central shafts of the two wheels are connected to the connecting piece I.

Furthermore, the three-wheel mechanism comprises three wheels and a connecting piece II, the three wheels are connected to the connecting piece II, the three wheels are arranged in a triangular mode, and the rotating central shafts of the three wheels are connected to the connecting piece II.

Furthermore, the four-wheel mechanism comprises four wheels and a connecting piece III, the four wheels are connected to the connecting piece III and are arranged in a square shape, and the rotating central shafts of the four wheels are connected to the connecting piece III.

Further, the connecting member III is provided with four branch portions and a central portion, the central portion is connected to the rotating shaft, and the end portions of the branch portions are connected to the wheels.

Furthermore, the wheel can be a rubber wheel, the rotating central shaft is used for connecting a coupler, and the coupler is connected with a main shaft of the motor.

Furthermore, the frame comprises longitudinal support beams arranged on two sides, a motor frame is fixedly connected between the bottoms of the two support beams, and a motor driving system is arranged in the motor frame. The bottom of the longitudinal supporting beam is provided with a connecting frame, the connecting frame is connected with a motor frame, and the motor frame wraps the motor right spindle.

Further, the motor driving system comprises a motor, a main shaft, a coupler and a storage battery, the storage battery is connected with the motor, the motor is provided with the main shafts on two sides, the motor is arranged in the middle of the bottom of the frame, and the coupler is connected with the main shaft and the wheel shaft.

Further, the cart is also provided with a battery frame, the battery frame is fixed on the motor frame, and the storage battery is arranged in the battery frame.

Further, the storage battery can be provided with two blocks which are arranged at two sides of the motor. One battery may serve as a backup battery. The storage battery is used for supplying power to the motor.

Further, the motor driving system further comprises a motor start-stop button, and the motor start-stop button is arranged on a handle of the cart. The case is conveniently started and stopped by pressing.

The utility model relates to a but this kind of cat ladder shopping cart, simple structure climbs stair labour saving and time saving, especially to the old person, and the old person is pushing away the shopping cart and is climbing stair and have certain difficulty, and the shopping cart of this application can solve the defect that present old person's shopping cart does not be equipped with automatic drive system. The operation is simple, when the ladder needs to be climbed, the starting and stopping of the motor can be realized only by pressing the key, and the motor driving system drives the shopping cart.

Drawings

Fig. 1 is a front view of the ladder mountable shopping cart of the present invention;

FIG. 2 is a side view of the stair climbable shopping cart of the present invention;

FIG. 3 is a two-wheel structure of the ladder-climbing shopping cart of the present invention;

FIG. 4 is a four-wheel structure of the ladder-climbing shopping cart according to the present invention;

in the figure: 1-a vehicle frame; 2-a coupler; 3-three connecting wheel mechanism; 4-a connection frame; 5-a storage battery; 6-a main shaft; 7-a motor; 8-a motor frame; 9-connecting piece I; 10-a battery frame; 11-a fixing member; 12-connecting piece II; 13-connector III; 14-a handle; 15-start stop key.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1, the shopping cart comprises a frame 1, wheels and a motor driving system, wherein the motor driving system is fixed on the frame 1, the motor driving system is connected with the wheels, and the wheels comprise two-wheel connecting mechanisms, three-wheel connecting mechanisms or four-wheel connecting mechanisms. The shopping cart can be a daily-used cart, the motor driving system is fixed in the middle of the bottom of the cart frame, and the motor 7 is provided with a bidirectional main shaft for ensuring that the two sides rotate in the same direction to drive the wheels to move.

The two wheel connecting mechanisms are provided with two wheels and a connecting piece I9, the two wheels are connected through the connecting piece I9, and the rotating central shafts of the two wheels are connected to the connecting piece I9. The cart with the two wheels has a simple structure, but the torsion force borne by the main shaft of the motor is relatively large, so that the cart is suitable for loading daily articles.

The three-wheel mechanism 3 is provided with three wheels and a connecting piece II12, the three wheels are connected with a connecting piece II12, the three wheels are arranged in a triangle shape and are in an equilateral triangle shape, and the rotating central shafts of the three wheels are connected with a connecting piece II 12.

The main shafts of the three wheels are subjected to a smaller torsional force than the main shafts of the two wheels, and should be capable of carrying a relatively heavy load.

The span of links I, II12 and III may determine the height of the stairs.

The four-wheel mechanism is provided with four wheels and a connecting piece III13, wherein the four wheels are connected to the connecting piece III13 and are arranged in a square shape, and the rotating central shafts of the four wheels are connected to the connecting piece III. The main shafts of the four wheels are smaller than the main shafts of the two wheels and the main shafts of the three wheels, so that heavier load can be borne.

The connector III13 is provided with four branch parts and a central part, the central part is connected with the rotating shaft, and the end parts of the branch parts are connected with the wheels.

The wheel can adopt a rubber wheel, the rotating central shaft is used for connecting the coupler 2, the coupler is connected with the main shaft of the motor, and the fixing piece 11 is connected between the coupler 2 and the main shaft, can be a key or a bolt. The wheel spins and is used for leveling the ground. The wheel rotates around the rotating central shaft and is used for climbing stairs.

The frame 1 comprises longitudinal support beams arranged on two sides, a motor frame 8 is fixedly connected between the bottoms of the two support beams, and a motor driving system is arranged in the motor frame 8. The bottom of the longitudinal supporting beam is provided with a connecting frame 4, the connecting frame 4 is connected with a motor frame 8, and the motor frame 8 wraps the motor and is a main shaft.

The connecting frame is a closed box structure, and the connecting frame and the motor frame 8 can be of an integrated structure. The motor frame is also a closed box structure, and the main shaft and the motor are sealed in the motor frame. The motor comprises a battery frame, wherein the battery frame is also of a closed box structure and is connected to a position between the motor and the main shaft.

The motor driving system comprises a motor 7, a main shaft 6, a coupler 2 and a storage battery 5, the storage battery 5 is connected with the motor 7, the motor 7 is provided with the main shafts 6 on two sides, the motor is arranged in the middle of the bottom of the frame, and the coupler is connected with the main shaft 6 and the wheel shaft.

The cart is further provided with a battery frame 10, the battery frame 10 being fixed to the motor frame, and the storage battery being disposed within the battery frame 10.

The storage battery 5 can be provided with two blocks and is arranged at two sides of the motor 7. One battery may serve as a backup battery. The accumulator 5 is used to supply power to the motor.

The motor driving system further comprises a motor start-stop button 15, and the motor start-stop button 15 is arranged on the handle 14 of the cart, so that the motor start-stop button is convenient to operate.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. A shopping cart capable of climbing stairs is characterized in that: the wheel comprises a frame, wheels and a motor driving system, wherein the motor driving system is fixed on the frame, the motor driving system is connected with a wheel rotating shaft, and the wheels comprise two wheel connecting mechanisms, three wheel connecting mechanisms or four wheel connecting mechanisms.

2. The ladder climbing shopping cart according to claim 1, characterized in that: the frame comprises longitudinal supporting beams arranged on two sides, a motor frame is fixedly connected between the bottoms of the longitudinal supporting beams on the two sides, and a motor driving system is arranged in the motor frame.

3. A ladder climbing shopping cart according to claim 1 or 2, characterized in that: the motor driving system comprises a motor, a main shaft, a coupler and a storage battery, wherein the storage battery is connected with the motor, the motor is provided with the main shafts on two sides, the motor is arranged in the middle of the bottom of the frame, and the coupler is connected with the main shaft and the wheel shaft.

4. The ladder climbing shopping cart according to claim 2, characterized in that: the cart is also provided with a battery frame, the battery frame is fixed on the motor frame, and the storage battery is arranged in the battery frame.

5. The ladder climbing shopping cart according to claim 3, characterized in that: the storage battery is provided with two blocks and is arranged on two sides of the motor.

6. The ladder climbing shopping cart according to claim 3, characterized in that: the motor driving system further comprises a motor start-stop button, and the motor start-stop button is arranged on a handle of the trolley.

7. The ladder climbing shopping cart according to claim 1, characterized in that: the two wheel connecting mechanisms comprise two wheels and a connecting piece I, the two wheels are connected through the connecting piece I, and the rotating central shafts of the two wheels are connected to the connecting piece I.

8. The ladder climbing shopping cart according to claim 1, characterized in that: the three-wheel mechanism comprises three wheels and a connecting piece II, wherein the three wheels are connected to the connecting piece II, and the three wheels are arranged in a triangular shape.

9. The ladder climbing shopping cart according to claim 1, characterized in that: the four-wheel mechanism comprises four wheels and a connecting piece III, the four wheels are connected to the connecting piece III, and the four wheels are arranged in a square shape.

10. The ladder climbing shopping cart according to claim 9, characterized in that: the connecting piece III is provided with four branch parts and a central part, the central part is connected with the rotating shaft, and the end parts of the branch parts are connected with the wheels.